The office in Japanese

I work with some folks who watch "The Office" (the American version), but I don't usually watch it because it doesn't seem that funny. This clip is funny, though, not only because they're speaking Japanese with odd accents while maintaining their Americanisms, but because it pokes fun at British humor as well (what Ricky Gervais says at the end). It's also funny to see how Westerners portray Japan (though I bet a well-informed person wrote the sketch, because it has some good Japanese details).